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LibJS: Remove fallback value for get_offset_nanoseconds_for

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This is a normative change in the Temporal spec.

See: 664f02d

Note that the tests are not comprehensive.
This commit is contained in:
Luke Wilde 2021-11-17 09:37:53 +00:00 • committed by Linus Groh
parent f1784c9c87
commit 3666d2132b
20 changed files with 140 additions and 15 deletions
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18
Userland/Libraries/LibJS/Runtime/Temporal/TimeZone.cpp
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@ -420,29 +420,25 @@ ThrowCompletionOr<double> get_offset_nanoseconds_for(GlobalObject& global_object
// 1. Let getOffsetNanosecondsFor be ? GetMethod(timeZone, "getOffsetNanosecondsFor").
auto* get_offset_nanoseconds_for = TRY(time_zone.get_method(global_object, vm.names.getOffsetNanosecondsFor));
// 2. If getOffsetNanosecondsFor is undefined, set getOffsetNanosecondsFor to %Temporal.TimeZone.prototype.getOffsetNanosecondsFor%.
if (!get_offset_nanoseconds_for)
get_offset_nanoseconds_for = global_object.temporal_time_zone_prototype_get_offset_nanoseconds_for_function();
// 2. Let offsetNanoseconds be ? Call(getOffsetNanosecondsFor, timeZone, « instant »).
auto offset_nanoseconds_value = TRY(call(global_object, get_offset_nanoseconds_for, time_zone, &instant));
// 3. Let offsetNanoseconds be ? Call(getOffsetNanosecondsFor, timeZone, « instant »).
auto offset_nanoseconds_value = TRY(vm.call(*get_offset_nanoseconds_for, time_zone, &instant));
// 4. If Type(offsetNanoseconds) is not Number, throw a TypeError exception.
// 3. If Type(offsetNanoseconds) is not Number, throw a TypeError exception.
if (!offset_nanoseconds_value.is_number())
return vm.throw_completion<TypeError>(global_object, ErrorType::IsNotA, "Offset nanoseconds value", "number");
// 5. If ! IsIntegralNumber(offsetNanoseconds) is false, throw a RangeError exception.
// 4. If ! IsIntegralNumber(offsetNanoseconds) is false, throw a RangeError exception.
if (!offset_nanoseconds_value.is_integral_number())
return vm.throw_completion<RangeError>(global_object, ErrorType::IsNotAn, "Offset nanoseconds value", "integral number");
// 6. Set offsetNanoseconds to ℝ(offsetNanoseconds).
// 5. Set offsetNanoseconds to ℝ(offsetNanoseconds).
auto offset_nanoseconds = offset_nanoseconds_value.as_double();
// 7. If abs(offsetNanoseconds) > 86400 × 10^9, throw a RangeError exception.
// 6. If abs(offsetNanoseconds) > 86400 × 10^9, throw a RangeError exception.
if (fabs(offset_nanoseconds) > 86400000000000.0)
return vm.throw_completion<RangeError>(global_object, ErrorType::TemporalInvalidOffsetNanosecondsValue);
// 8. Return offsetNanoseconds.
// 7. Return offsetNanoseconds.
return offset_nanoseconds;
}